Fritsch

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Rotor mills:

P-16

Cross-cut mill for primary and fine grinding with a throughput of up to 80 l/h

Fritsch GmbH

The FRITSCH P-16 Rotor Mill is the ideal instrument for the rapid and gentle pre-grinding and fine grinding of medium-hard, brittle materials up to Mohs hardness 6 in laboratories, pilot plants, and industrial settings. The impact cross mill grinds bulk materials with a feed size of up to 25 mm—often in a single pass—to a final fineness of less than 100 µm—perfect for grinding coal, coke, limestone, or slate.

Versatile operating modes for maximum flexibility

The P-16 rotor mill operates either in batch or continuous mode, achieving a throughput of up to 80 l/h. With a freely adjustable rotor speed ranging from 2,000 to 4,000 rpm in increments of 200 rpm, the mill can be optimally adapted to different applications. For batch operation, a 5-liter collection vessel and filter hose are included as standard; a 26-liter vessel is available for larger quantities.

Grinding Principle and Final Particle Size

Grinding is achieved through impact, collision, and shearing forces. The material to be ground is fed directly into the center of the grinding chamber via the feed hopper and ground between the impact cross and the teeth of the grinding insert. The final particle size is determined by the choice of bottom screen—easily interchangeable trapezoidal and round-hole bottom screens made of stainless steel with aperture sizes ranging from 0.12 to 10 mm are available. The rotating impact cross generates an airflow that accelerates the discharge of the ground sample into the collection container, while the integrated filter hose effectively reduces fine dust emissions.

Material Variants for Different Applications

The P-16 rotor mill is available in various material configurations: For all standard applications, it comes with a grinding insert and impact cross made of cast iron and impact plates made of hardened steel. For specialized applications in the chemical industry, the all-stainless-steel version is designed. And for particularly hard and abrasive materials, we recommend the version with a grinding insert and impact plates made of hardened steel and a cast iron impact cross.

Clean Design for Easy Cleaning

The grinding chamber is designed so that virtually no residual material can accumulate. The impact plates and bottom screen can be removed in just a few simple steps without tools—perfect conditions for quick, easy cleaning between different samples. The practical quick-release latch on the grinding chamber allows for convenient access.

Safety and Ease of Use

A safety switch guarantees maximum operational safety: If the door quick-release latch is opened unintentionally, it activates the motor brake, bringing the rotor to an immediate stop. The powerful 1.1-kW three-phase motor with a frequency converter ensures reliable operation. The mill can either be mounted on a table or used as a freestanding unit with the separately available FRITSCH universal stand.

With its combination of high throughput, variable speed, and ease of use, the P-16 rotor mill is the all-around workhorse for rapid grinding tasks in geology and mineralogy, mining and metallurgy, ceramics, and metallurgy. Discover how easy efficient sample preparation can be.

Sample Extraction with a Cyclone

Combining the P-16 rotor mill with the FRITSCH high-performance cyclone offers additional advantages: easier cleaning and filling, the use of finer bottom screens for higher final finenesses, accelerated throughput, and minimized thermal stress on the samples—even for materials that are otherwise difficult to grind finely. Additional collection vessels ranging from 1 to 60 liters can also be used.

Note: This article has been automatically translated. LUMITOS offers this service to make product information available in more languages. As this article was created automatically, errors and deviations from the original are possible. The original presentation in German can be found here.